
canvas{
    background: rgba(0, 0, 0, .5);
}
.ban{
    width: 100%;
    height: 360px;
}
.banner-container{
    width: 1200px;
    height: 100px;
    color: #fff;
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 90px;
}
.banner-container h2{
    width: 100%;
    height: 50px;
    font-size: 36px;
    text-align: center;
}
.banner-container h4{
    width: 100%;
    height: 48px;
    font-size: 12px;
    text-align: center;
    line-height: 48px;
}
.banner-container h5{
    width: 100%;
    height: 22px;
    font-size: 16px;
    text-align: center;
}

.case-container{
    width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    box-sizing: border-box;
}
.caseline{
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 22px;
    margin-top: 24px;
}
.caseline span{
    font-size: 10px;
    color: #ccc;
}
.case ul li{
    width: 380px;
    height: 350px;
    border: 1px solid #ccc;
    padding: 10px 10px 0 10px;
    box-sizing: border-box;
    margin-right: 30px;
}
.case ul li:nth-child(3n){
    margin-right: 0;
}
.case ul li img{
    width: 358px;
    height: 145px;
}
.case ul li h3{
    margin: 30px 0 14px 0;
    margin-left: 10px;
    font-size: 16px;
}
.case ul li p{
    width: 316px;
    font-size: 11px;
    line-height: 18px;
    color: #666;
    margin-bottom: 28px;
    margin-left: 10px;
}
.case ul li h5{
    margin-left: 10px;
}
.case ul li a{
    color: #1271ef;
    font-size: 12px;
}
.more-friends{
    width: 1200px;
    margin: 0 auto;
}
.more-friends div{
    margin-top: 20px;
    margin-bottom: 20px;
}
.more-friends ul li{
    width: 354px;
    height: 120px;
    margin-right: 69px;
    margin-bottom: 20px;
    background: #fff;
    padding: 40px 112px;
    box-sizing: border-box;
}
.more-friends ul li:nth-child(3n){
    margin-right: 0;
}
.more-friends ul li img{
    width: 130px;
    height: 40px;
}
.navright{
    width: 72px;
    height: 120px;
    position: fixed;
    right: 130px;
    top: 427px;
    cursor: pointer;
}
.navright div{
    width: 72px;
    height: 30px;
    text-align: center;
    font-size: 15px;
}
.b3c{
    width: 100%;
    height: 2200px;
}